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Analog Devices Inc./Maxim Integrated MAX4504CSA+
- Part No.:
- MAX4504CSA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4504CSA+.pdf
- Description:
- IC SWITCH SPST 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,101
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Product details
Overview
MAX4504CSA+ from Maxim Integrated is a normally closed (NC), low-voltage, dual-supply SPST CMOS analog switch in SOT23-5 package. It operates from ±1V to ±6V supplies, supports rail-to-rail analog signals up to ±4.5V, exhibits 250Ω on-resistance at ±5V, and delivers 1nA off-leakage at +25°C - ideal for precision signal routing in battery-powered audio and data-acquisition systems.
For engineers reviewing the MAX4504CSA+ datasheet, MAX4504CSA+ pinout, MAX4504CSA+ application, or MAX4504CSA+ equivalent, key selection criteria include NC default state, dual-supply operation without ground reference, guaranteed charge injection ≤10pC, fast switching (tON = 150ns), and SOT23-5 footprint compatibility with space-constrained portable designs.
Technical Context
The MAX4504CSA+ uses a CMOS transmission-gate architecture with internal logic-level translation that references V+ - enabling CMOS-compatible digital control even without a ground pin. Its analog path is fully isolated from supply rails except via ESD diodes, ensuring no DC path between COM, NO/NC, and V+/V−.
It features matched P/N-channel MOSFETs with body tied to V+, delivering symmetrical on-resistance across signal polarity and temperature (60Ω typ. at +25°C, 350Ω max over full temp range). Off-isolation exceeds −90dB at 100kHz, and dynamic performance is characterized up to 50MHz in 50Ω systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Normally closed (NC) SPST analog switch - defaults to conductive state when IN = LOW |
| Supply Range | ±1V to ±6V dual supply - enables operation from ultra-low-voltage battery sources (e.g., ±1.5V) |
| On-Resistance | 250Ω max at ±5V - ensures minimal signal attenuation and gain error in precision sensor interfaces |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance sampling circuits (e.g., ADC front-ends) |
| Charge Injection | 10pC max - limits voltage glitch on sampled nodes, critical for sample-and-hold stability |
| Switching Speed | tON = 150ns, tOFF = 100ns - supports multiplexing of audio and medium-speed data signals |
| Analog Signal Range | Rail-to-rail: V− to V+ - accommodates full-swing bipolar signals without clipping |
Pinout & Package
SOT23-5 surface-mount package (3.0mm × 1.4mm × 1.1mm), lead-free and RoHS-compliant, optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Primary signal path node; bidirectional - connects to load or source depending on system topology |
| 2 - NO/NC | Analog normally closed terminal | Internally connected to COM when IN = LOW; open when IN = HIGH (NC function) |
| 3 - V− | Negative analog supply | Sets lower rail of analog signal range; also biases ESD protection diodes on all analog pins |
| 4 - IN | Digital control input | CMOS-compatible logic input referenced to V+; no external pull-up required due to internal V+ bias |
| 5 - V+ | Positive analog/digital supply | Sets upper rail and powers internal logic translator; defines logic threshold (VIL ≈ V+ − 3.5V, VIH ≈ V+ − 1.5V) |
Key Features
| Feature | Design Value |
|---|---|
| No ground pin required | Enables true dual-supply operation in floating or split-rail systems without ground reference constraints |
| Guaranteed 1nA off-leakage at +25°C | Ensures <1µV error in 1MΩ impedance paths - suitable for medical sensor front-ends and precision instrumentation |
| 10pC max charge injection | Reduces hold-mode settling error in 12-bit+ SAR ADCs using external sample capacitors ≥100pF |
| 150ns turn-on time | Supports >1MHz channel scanning in multi-sensor data loggers with minimal inter-channel crosstalk |
| ±1V minimum supply operation | Extends battery life in single-cell Li-ion or two-cell alkaline systems where supply drops below ±2V |
Applications
| Battery-Powered Audio Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Signal path selection between microphone inputs and codec ADC in Bluetooth earbuds. IC Role / Device Role / Timing Role: NC SPST switch isolating standby mic channels while routing active mic signal to ADC input. Use Value: 1nA off-leakage prevents DC offset drift in high-Z electret bias networks; ±1.5V operation matches single-LiPo rail. |
Use Scenario: Multiplexing thermistor, RTD, and strain gauge sensors into a shared 16-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Precision analog switch front-end providing rail-to-rail signal pass-through with minimal RON mismatch. Use Value: 250Ω on-resistance and 10pC charge injection ensure <0.01% gain error and <1LSB settling in 100ms sampling cycles. |
| Cellular Phone Baseband Switching | PCMCIA Card Interface Protection |
Use Scenario: Isolating RF transceiver I/Q lines from baseband processor during sleep mode in 4G/LTE modules. IC Role / Device Role / Timing Role: NC switch maintaining signal continuity during active mode and breaking path only on deep-sleep command. Use Value: 100ns turn-off time enables fast transition to low-power state; −90dB off-isolation suppresses LO leakage at 2.1GHz. |
Use Scenario: Protecting host controller GPIOs from hot-insertion transients and ESD events on PCMCIA card edge connectors. IC Role / Device Role / Timing Role: Bidirectional analog switch decoupling card-side signals from host during insertion/removal. Use Value: Internal ESD diodes to V+/V− withstand ±15kV HBM; rail-to-rail capability handles 3.3V/5V mixed-signaling environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4504ESA+ | Same functionality, extended temperature range (−40°C to +85°C) vs. 0°C to +70°C for MAX4504CSA+ | Required for industrial or automotive ambient environments beyond commercial grade | Select MAX4504ESA+ when operating outside 0–70°C or requiring AEC-Q200 alignment support |
| ADG1419BRMZ | SPST NC switch with higher supply range (±5V to ±22V), 3.5Ω on-resistance, but requires ground pin and consumes 100µA quiescent current | Not drop-in: different pinout (8-lead MSOP), incompatible logic referencing, and larger footprint | Choose ADG1419BRMZ only when >±15V signal handling or sub-5Ω RON is mandatory - not for space- or power-constrained portable use |
Compared with MAX4504CSA+, MAX4504ESA+ offers identical electrical behavior with enhanced thermal robustness, while ADG1419BRMZ trades ultra-low leakage and groundless operation for higher voltage tolerance and lower on-resistance - making it unsuitable as a direct replacement in battery-powered SOT23-5 designs.
Availability
MAX4504CSA+ is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MAX4504CSA+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, communications, and consumer applications.
The MAX4503/MAX4504 family was engineered specifically for low-voltage, dual-supply analog switching in portable and space-constrained systems - prioritizing ultra-low leakage, groundless operation, and rail-to-rail signal integrity over high-speed or high-voltage capability.
FAQ
What is the default switch state of the MAX4504CSA+?
The MAX4504CSA+ is a normally closed (NC) analog switch: when the IN pin is logic LOW (≤ V+ − 3.5V), the COM-to-NC path is conductive; when IN is HIGH (≥ V+ − 1.5V), the path opens. This behavior is intrinsic to the MAX4504CSA+ silicon design and does not require external biasing or configuration.
Does the MAX4504CSA+ require a ground connection to operate?
No - the MAX4504CSA+ has no ground pin and operates with only V+ and V− supplies. Its digital input is internally referenced to V+, and analog signal paths are isolated from supply rails except through ESD diodes. This allows true floating or split-rail operation, a defining feature of the MAX4504CSA+ architecture.
What is the maximum analog signal voltage the MAX4504CSA+ can handle?
The MAX4504CSA+ supports rail-to-rail analog signals from V− to V+. With ±5V supplies, it handles ±4.5V signals continuously; with ±1.5V supplies, it supports ±1.5V signals. Exceeding V+ or falling below V− forward-biases internal ESD diodes - limiting absolute signal range to (V− − 0.3V) to (V+ + 0.3V), per absolute maximum ratings of the MAX4504CSA+.
Can the MAX4504CSA+ be used with single-supply systems?
The MAX4504CSA+ is designed for dual-supply operation and is not rated for single-supply use. For single-ended systems, Maxim specifies the pin-compatible MAX4502 (NO) or MAX4501 (NC) - which share the same SOT23-5 footprint but include dedicated ground and V+ pins. Using MAX4504CSA+ with only one supply violates its operational specifications and may cause malfunction.
How does charge injection affect circuit performance in the MAX4504CSA+?
Charge injection in the MAX4504CSA+ is guaranteed ≤10pC. When the switch turns OFF, this injected charge appears as a voltage step (∆V = Q/CL) on downstream capacitive nodes - causing errors in sample-and-hold or switched-capacitor circuits. For a 100pF hold capacitor, MAX4504CSA+ contributes ≤100mV glitch; designers mitigate this with buffer amplifiers or larger CL.
MAX4504CSA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4504CSA+ FAQ
1.How can I place an order for MAX4504CSA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4504CSA+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4504CSA+ reliable?
The price and inventory of MAX4504CSA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4504CSA+ is usually 5 days.
3.What payment methods are accepted for MAX4504CSA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4504CSA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4504CSA+?
MAX4504CSA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4504CSA+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4504CSA+?
For technical support, including MAX4504CSA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4504CSA+ requirements.
6.How does Aetrix verify that MAX4504CSA+ is sourced from the original manufacturer or authorized distributors?
All MAX4504CSA+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4504CSA+ meets industry standards.
7.What is the process for return or replacement of MAX4504CSA+?
All MAX4504CSA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4504CSA+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4504CSA+ part is unused and in its original packaging.
Return procedure for MAX4504CSA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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